Scorpion Piston - VSR10 (Plug & Play Edition)

The New Stalker Scorpion Piston - VSR10 (Plug & Play Edition) for the VSR10!

Due to great success we can now offer the Scorpion Piston VSR-10 Plug and Play Edition, this edition is a prebuild Scorpion Piston, assembled to 71 grams with an adjustable air brake to upgrade your VSR10.

This edition will make your VSR10 quiet, have a smoother bolt pull and better consistency in FPS.

With a 71 gram weight this piston can work perfectly from 310mm to 470mm inner barrels. You will need not need to tune the piston weight if you are shooting between 2 and 3 joule with these barrels, on higher or lower joule outputs or short/longer inner barrels we suggest you get the complete kit for more adjustability.

The difference between this version and the complete kit version is that the following products are not included.

• 2x Steel Piston Weight
• 2x Aluminum weights
• 1x Aluminum Piston head
• 1x Long Air brake
• 1x Stalker Engraved Spring guide

If you ever want to upgrade this piston to the full kit, you can purchase the Scorpion SSG10/VSR10 upgrade kit to have it complete.

Key Features :

• Weight-adjustable modular piston
• Silences your VSR10
• Increases joule/fps consistency
• Adjustable air brake with double O-ring cutouts for optimal fine-tuning
• Option to short stroke your SSG10 for quicker reloads (Need upgrade kit, sold separately).
• Comes with 3mm Anti Shock/bumper Pad to avoid the slam sound of your piston on the SSG cylinder head
• Different Hardness and sizes Anti Shock/bumper pads are available (Check Related products)

The piston is optimally designed to work with 9MM springs, it can be used with 7MM springs, but is not recommended for the best results.

The piston comes with 1 adjustable air brake for fine-tuning your setup.

• 1x 4.40 mm Short Air Brake (Optimal for 2j and 3J~ Builds or higher).

The new designed piston comes with a slightly modified piston cup to give optimal results in Tokyo Marui specification cylinders (such as Action Army). This cup will work from 1J up to 4J+.

Golden Rules of installation

• Always put a drop of Silicon oil or oil on your cup edge to achieve optimal joules.
• For 2.3j setups we recommend starting with the short air brake and unscrewing it completely.
  
• For 2.8+ setups we recommend starting with the short air brake and screw it in completely.
• Always set your hopup correctly on desired BB Weight and adjust to shoot straight.
• Higher the Joule = Shorter the Air brake
• Lower the Joule = Longer the Air brake.
• Air brake setup: start low, then higher (Unscrew) it each time until the setup is silent.
• When you start to lose joules then you know you are just over the perfect position of the air brake. You then have to screw the brake back in a bit, gain joules back, and have the most silent setup.

Good setups need adjustable air brakes because too many parts in your rifle can change the acceleration speed of the piston. BB Weight, Spring Power,  Bucking Hardness, Barrel Length, Weight of the piston, etc. We also recommend buying some spring guide spacers to play with the weight of the piston and joules of the spring.

Included in this kit :

• 1x 3mm Anti Shock Pad (Cylinder head Not included)
• 1x Piston cup (only works with Tokyo Marui VSR10 cylinder dimensions)
• 1x Stainless steel piston Head
• 3x Aluminum weights
• 2x Stainless steel weights
• Sear end cap made of stainless steel
• 1 Adjustable Air Brake (Short version)
• 1x Nut to lock the Air Brake setting
• 6x O rings in between the weights or cylinder head to stop the weights from loosening by playing
• 2x Front and Back guide rings made of POM for Tokyo Marui VSR10 dimensions.
• 1x Stalker Engraved Spring guide

In depth information about the Stalker Scorpion Piston, may need to purchase upgrade kit to have all possibilities. 

The Scorpion piston is a unique concept where 6 weights form the body itself and as the piston itself is made up of these weights, it is also possible to extend the piston with additional weights (short stroke) which in turn reduces the volume of your cylinder and joule output but makes loading your VSR10 a lot shorter by each weight you add at the cost of some joule output which can be compensated with a stronger spring. 

The piston has different weights that are interchangeable with each other to perfectly set up your VSR10.

• Aluminum anodized black body weights, each piece weighs: 3 Grams
• Stainless steel polished body weights, each piece weighs: 11 Grams

There are 2 piston heads versions :

• Aluminum anodized black Piston Head, each piece weighs: 7 Grams
• 1x Stainless steel polished steel head that weighs: 17 Grams

The air brakes are held with a nut underneath the cup against the piston head to keep it in place after you have adjusted it to your liking. The adjustable air brake is there to adjust the piston’s speed at the very end of its movement to reduce the time of air escaping the cylinder and to reduces piston impact noise when it hits the cylinder head, a sorbo pad on your cylinder head can still be used with this piston.

Basically, if you like a plug and play piston or if you are a master of tinkering with your piston weights, air brakes to get the best performance, then the Stalker Scorpion is your best friend.

If you have any issues or questions about this or other Stalker Products, please visit our Stalker Owners Group on Facebook here:

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